THERMAL MAGNETIC, 3 POLE, 240 VAC, 50 AMPERE AT 40 DEG C, INTERRUPTING RATING 22000 AMPERE, EXTENDED TANG LINE TERMINAL TERMINAL, BOLT ON MOUNTING, APPROVAL UL 489, CSA, QUICKLAG[R] BRAND, QBHW MODEL Miniature Circuit Breakers from Eaton / Cutler-Hammer